00577naa#a2200169#i#450# EN\\bibl\47711 20240428164023.7 2073-5529 20211215b2021####ek#y0engy0150####ca RU Structure of poaching sturgeon species in the Irtysh River in 2013-2020 (according to ichthyologic examinations) Journal article Astrakhan Astrakhan State Technical University 2021 6 с. Journal article local Зоология. 59 Chemagin Andrey Aleksandrovich vestnik.astu.org